268669741761 has 6 divisors (see below), whose sum is σ = 388078515890. Its totient is φ = 179113161168.

The previous prime is 268669741757. The next prime is 268669741777. The reversal of 268669741761 is 167147966862.

It is a happy number.

268669741761 is a `hidden beast` number, since 26 + 86 + 69 + 7 + 417 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 155329786161 + 113339955600 = 394119^2 + 336660^2 .

It is not a de Polignac number, because 268669741761 - 2² = 268669741757 is a prime.

It is a super-2 number, since 2×268669741761² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268669741751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14926096756 + ... + 14926096773.

Almost surely, 2^268669741761 is an apocalyptic number.

It is an amenable number.

268669741761 is a deficient number, since it is larger than the sum of its proper divisors (119408774129).

268669741761 is a wasteful number, since it uses less digits than its factorization.

268669741761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29852193535 (or 29852193532 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 268669741761 in words is "two hundred sixty-eight billion, six hundred sixty-nine million, seven hundred forty-one thousand, seven hundred sixty-one".